People with integrity do what they say they are going to do. Others have excuses.
Don't worry so much about your self esteem. Worry more about your character. Integrity is its own reward.
Make decisions from the strong part of you, not the weak.
Never do anything that you aren't prepared to face the true consequences of.
Situations reveal who we are, they don't create who we are.
The people and circumstances around me do not MAKE me what I am, they REVEAL who I am.
When you're the victim of the behavior, it's black and white when you're the perpetrator, there are a million shades of gray.
We can be negative and cynical or we can be charged and hot wired to find a way through it, over it, around it under it.
This is all you have. This is not a dry run. This is your life. If you want to fritter it away with your fears, then you will fritter it away, but you won't get it back later.
Don't spend time beating on a wall, hoping to transform it into a door.